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EN
Purpose: The paper presents the possibility to improve the mechanical properties of dental implants produced of Ti6Al4V titanium alloy and possibility to use a new method to production those implants. The aim of the study was a comparison of properties of the feed materials, produced and commercial implants made of Ti6Al4V. Design/methodology/approach: The innovative injection methods was used. The comparison of microstructures and microhardness were carried out. Findings: It was shown that the use of new injection methods in the dental implant producing process effects on their structure and thus their mechanical properties. It has been observed that implants manufactured in comparison to commercial implants have a varied structure which is changing from the surface of the implant to its core. These changes are associated with a producing method that ensures very rapid heat dissipation from the surface of the manufacturing element. Research limitations/implications: During the production of the implants, problems have been encountered with keeping the alloy clean may occur. Practical implications: Injection method can be used as a method for commercial production of dental implants. Originality/value: The paper presents the results of microstructure and mechanical properties of dental implants – produced by new injection method.
EN
Purpose: The study attempts to improve the properties of Ti15V3Al3Cr3Sn titanium alloy by applying an innovative method of shaping, injection with rapid cooling. The comparison of structures and properties of Ti15V3Al3Cr3Sn titanium alloy produced by two methods: conventional one by rolling and by injection with rapid cooling has been presented. Design/methodology/approach: Ti15V3Al3Cr3Sn titanium alloy produced by two methods: traditionally used rolling to achieve products in the form of sheets and unconventionally used injection of molten alloy to mold under pressure with rapid cooling. To achieve the objective the following studies have been carried out: observation of the microstructure by the optical and scanning electron microscope, EDS to verify the chemical composition, roughness measurement to examine surface layer geometry and microhardness tests. Findings: : Observations of microstructures have shown that the Ti15V3Al3Cr3Sn titanium alloy produced by overpressure with rapid cooling has the ability to create fine-grained structure in a top layer with a more ductile core. Such a combination of the structure has enabled to obtain better mechanical properties than the samples produced by the conventional method. Hard, durable and smooth surface layer with a ductile core provides the opportunity to use that material in many fields of materials engineering. Originality/value: The paper presents studies of titanium alloy shaped by the unconventional method of injection to achieve much better properties than for alloys obtained by rolling.
EN
Purpose: In these paper was were characterized mechanical properties of titanium alloy Ti-6Al-4V, which were produced by two methods - conventional casting and injection casting. Studies were presented by comparing of samples which were produced by these methods. Design/methodology/approach: Samples were produced by two methods – conventional and injection casting. To achieve the objective were performer the following steps: the microstructure was carried out, the analysis of mechanical properties was done (microhardness), study of surface roughness was made, research of abrasion was made and phase composition by X-ray diffraction was made. After then then a comparison of these studies between these samples was made. Findings: The study of the microstructure was observed that the titanium alloy Ti-6Al-4V prepared by the conventional method, it has equiaxed and globular structure. In contrast, titanium alloy produced by the injection has strips structure, where phase α’ is on phase β border. Further studies have shown that a sample of titanium alloy Ti-6Al-4V produced by injection it has a much greater tribological resistance because it has a higher microhardness and much greater roughness than the sample of the same alloy produced by the conventional method. Originality/value: In this article conducted a comparative characteristics for the two production methods - conventional and injection - titanium alloy Ti-6Al-4V. The research indicated that much better mechanical properties are characterized alloys produced by injection.
PL
Zakres badań niniejszej pracy obejmuje wpływ parametrów technologicznych formowania kompozytu technikami wtrysku na własności wytrzymałościowe materiału polimerowego wzmocnionego włóknem szklanym. W zależności od czynników eksploatacyjnych zaprogramowano model zmian parametrów wytrzymałościowych otrzymanego techniką infuzji i RTM-u materiału, uwzględniając wpływ czynników klimatycznych i kąta ułożenia wzmocnienia w otrzymanym kompozycie.
EN
The paper focuses on the influence of technology and atmosphere on the strength of fiber glass reinforced polymer-matrix composite materials. The strength was modeled for different service conditions and different fiber orientations using the Resin Infusion Molding and Resin Transfer Moulding technology. Other physical and mechanical properties of a polymer-matrix composite were also studied.
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